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5.3 Error Codes and How to Handle Them
5.3.1 About Error Codes
When an error occurs in the GT series, an error code displays at the top right of the screen. There are
two types of error codes, GT series error codes and PLC error codes.
For GT02 / GT02L / GT03-E / GT05 / GT12 / GT32 / GT32-R / GT32-E
Code No.
**_ _ _ _
GT series
Note 1)
ER_ _ _ _
PLC
For GT02 / GT02L / GT03-E / GT05 / GT12 / GT32 / GT32-R / GT32-E
Code No.
Note 1)
ER_ _ _ _
GT01/GT11/GT21
Note 1) Some error codes (typical errors only) related to connection with other companies' PLCs are also
introduced. For details, refer to the manual provided by each PLC manufacturer.
5.3.2 GT Series Error Codes
The following error codes are displayed when there is an error in the GT.
GT Unit Errors
For GT01, GT11 and GT21
Code No.
Content
ER00
BCC error
Time up error
ERFF
No response from the
PLC.
Data error
A data error occurred
ER21
during
communication.
Overrun error
ER22
The GT cannot
receive data.
Note 1) Duplicated with the PLC error codes. Refer also to "5.3.3
".
PLC
5-10
Unit
Refer to "5.3.2 GT Series Error Codes".
Refer to "5.3.3 When Connected to a FP Series PLC".
Unit
PLC or GT error
Refer "For GT01, GT11 and GT21".
1) The value of BCC may be incorrect. Check if there is no
calculation mistake.
2) There is a temporary error due to noise, etc. Re-supply power
to the PLC and GT.
1) The PLC connection cable is disconnected. Check the
connection cable to make sure it is connected.
2) There is a temporary error due to noise, etc. Re-supply power
to the PLC and GT.
1) An error exists in the communication condition settings.
Check the PLC and GT baud rate and transfer format.
2) There is a temporary error due to noise, etc. Re-supply power
to the PLC and GT.
The reception buffer in the GT is overflowing.
There could be an error in the PLC
Re-supply power to the PLC and GT.
Reference
Reference
Cause and solution
When Connected to a FP Series
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